package oop.selftest.ex11;

class Alpha {
	   static String s = " ";
	   protected Alpha() { s += "alpha "; }
	 }
	 class SubAlpha extends Alpha {
	   private SubAlpha() { s += "sub "; }
	 }
	public class SubSubAlpha extends Alpha {
	  private SubSubAlpha() { 
		  s += "subsub "; }
	  public static void main(String[] args) {
	    new SubSubAlpha();
	    System.out.println(s);
	  }
	}
